Home / 2,943.12-4,433.16-2,491.20

Finding the Fourth Proportional to 2,943.12, 4,433.16 and 2,491.20

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Solution

The fourth proportional to 2,943.12, 4,433.16 and 2,491.20 is: 3,752.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,943.12 : 4,433.16 = 2,491.20 : x
  2. Step 2: Convert to fraction form
    2,943.12/4,433.16 = 2,491.20/x
  3. Step 3: Cross multiply
    2,943.12x = 4,433.16 × 2,491.20
  4. Step 4: Simplify right side
    2,943.12x = 11,043,888.19
  5. Step 5: Solve for x
    x = 11,043,888.19/2,943.12
  6. Step 6: Final answer
    x = 3,752.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.